Corona 4gb. U1d1 voltages, trace repair. Only beeps

1, 2, 3, 4
xbox1help2
Novato
18 mensajes
desde oct 2018
Editado 1 vez. Última: 8/01/2019 - 17:48:53 por xbox1help2.
The console was working fine on retail / stock firmware
The console needed trace repair and had no 3.3v
so i replaced u5a1 using ams117-3.3 method and now The console just beeps that is it nothing else
I have replaced the rf card and tried with front button as well as the power pads on the board
nothing happens just beeps
No light on RF card and power brick light is orange

I do not have nand backup / dump
I tested voltage on pin 1 on the nand and get nothing
Eruil
Antediluviano de EOL
2.056 mensajes
desde oct 2015
en Puebla,México
Editado 1 vez. Última: 8/01/2019 - 17:58:51 por Eruil.
@xbox1help2

please ... post all your pocedure with full steps ... like 1.- console was working fine .
". - i tried to solder the nanddumper and i blown pin number x, y ,z. i repaired the trace but..... etcétera

have you left oscilator crystal soldered to ground?
well i was trying to rgh it but my soldering iron was on the blink so the board screwed up
no wires soldered on to the crystyl

I have repaired several traces and checked all joints and connections with multimeter
Eruil
Antediluviano de EOL
2.056 mensajes
desde oct 2015
en Puebla,México
Editado 1 vez. Última: 8/01/2019 - 19:24:57 por Eruil.
@xbox1help2

post all procedure with detailed steps, or i will not be able to help you. thanks
What more detail steps
I have said everything
I tried to solder the usb sd reader wires but ripped some pads and some traces
all of that is now fixed but not turning on

i do not know how much more detail you want me to say as I have said
Hello All
Please can some one help
Thanks
lechuk83
MegaAdicto!!!
762 mensajes
desde dic 2009
coul you please upload pictures of the nand area and the traces reparied?
Hi.
Im trying but pics not coming out clear

What could be causing this..
Please help
Many Thanks
lechuk83
MegaAdicto!!!
762 mensajes
desde dic 2009
many things, without pictures i could not help you.
xbox1help2
Novato
18 mensajes
desde oct 2018
Editado 2 veces. Última: 16/01/2019 - 16:41:14 por xbox1help2.
What could be many things
such as what
please

I have been doing some voltage measurements and attached are voltages found on J5B1
1, 2, 3, 4